<p>
  它的主要目的是使用一个学习系统之间的标准方式,通过外部服务工具连接学习系统(例如<a class="mw-redirect" title="Learning Management System" href="https://en.wikipedia.org/wiki/Learning_Management_System">学习管理系统</a> LMS) ,这个标准描述了连接系统作为LTI Tool Consumer和被连接工具作为LTI Tool Provider。
</p>

<h2>
  <span id="Terminology" class="mw-headline">术语</span>
</h2>

<p>
  <b>LTI Consumer:</b><br /> 这是使用工具的服务。通常这是一个 <a class="mw-redirect" title="Learning Management System" href="https://en.wikipedia.org/wiki/Learning_Management_System">学习管理系统</a> (LMS) 或者 <a title="Intranet portal" href="https://en.wikipedia.org/wiki/Intranet_portal">用户门户</a>。LTI Consumer需要提供用户信息和环境给LTI Tool Provider。此外LTI Consumer还要为用户提供认证担保给LTI Tool Provider。
</p>

<p>
  <b>LTI Tool Provider:</b> 这是给LTI Consumer提供服务的服务。这可以是<a title="On-premises software" href="https://en.wikipedia.org/wiki/On-premises_software"> on-premises software </a> 也可以是托管在LTI Cousumer外部的服务。<sup id="cite_ref-LTI1_2-1" class="reference"><br /> </sup>
</p>

<h2>
  <span id="History" class="mw-headline">历史</span>
</h2>

<ul>
  <li>
    最早的LTI实现称为BasicLTI,在2008年出现在<a title="Google Summer of Code" href="https://en.wikipedia.org/wiki/Google_Summer_of_Code">Google Summer of Code</a>项目,由Jordi Piguillem在<a title="Charles Severance" href="https://en.wikipedia.org/wiki/Charles_Severance">Charles Severance</a> 和Marc Alier的指导下开发。
  </li>
  <li>
    2010年6月<a title="IMS Global" href="https://en.wikipedia.org/wiki/IMS_Global">IMS Global Learning Consortium</a>发布LTI v1.0的最终标准。
  </li>
  <li>
    2012年8月 <a title="IMS Global" href="https://en.wikipedia.org/wiki/IMS_Global">IMS Global Learning Consortium</a>发布LTI v1.1的最终标准。增加了Tool Provider传递评分给Tool Consumer的功能。<sup id="cite_ref-5" class="reference"></sup>
  </li>
  <li>
    2014年1月 <a title="IMS Global" href="https://en.wikipedia.org/wiki/IMS_Global">IMS Global Learning Consortium</a>发布 LTI v2.0的最终标准。它支持在LTI Consumer 和 Provider之间基于 <a title="Representational state transfer" href="https://en.wikipedia.org/wiki/Representational_state_transfer">REST</a> 的更丰富和复杂的双向通信。
  </li>
</ul>

<h2>
  <span id="References" class="mw-headline">参考文献</span>
</h2>

<div class="reflist">
  <ol class="references">
    <li id="cite_note-IMS-1">
      <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.imsglobal.org/toolsinteroperability2.cfm" rel="nofollow">&#8220;Learning Tools Interoperability&#8221;</a>. IMS Global<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
    <li id="cite_note-LTI1-2">
       <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.imsglobal.org/lti/blti/bltiv1p0/ltiBLTIimgv1p0.html" rel="nofollow">&#8220;IMS Global Learning Tools Interoperability Version 1.0&#8221;</a>. Imsglobal.org<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
    <li id="cite_note-3">
      <span class="reference-text"><cite class="citation web"><a class="external text" href="https://code.google.com/p/basiclti4moodle/" rel="nofollow">&#8220;basiclti4moodle &#8211; Implements a IMS BasicLTI Consumer for Moodle &#8211; Google Project Hosting&#8221;</a>. Code.google.com. 2012-07-02<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
    <li id="cite_note-4">
      <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.imsglobal.org/lti/index.html#lti1.1" rel="nofollow">&#8220;Learning Tools Interoperability®&#8221;</a>. IMS Global<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
    <li id="cite_note-5">
      <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.imsglobal.org/LTI/v1p1p1/ltiIMGv1p1p1.html" rel="nofollow">&#8220;IMS Global Learning Tools Interoperability Implementation Guide Version 1.1.1&#8221;</a>. Imsglobal.org<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
    <li id="cite_note-6">
      <span class="reference-text"><cite class="citation web"><a class="external text" href="http://www.imsglobal.org/lti/ltiv2p0/ltiIMGv2p0.html" rel="nofollow">&#8220;IMS Global Learning Tools Interoperability Implementation Guide Version 2.0 Final&#8221;</a>. Imsglobal.org<span class="reference-accessdate">. Retrieved <span class="nowrap">2015-09-07</span></span>.</cite></span>
    </li>
  </ol>
</div>